CN1500305A - Case retained external capacitor mounted on motor sleeve - Google Patents
Case retained external capacitor mounted on motor sleeve Download PDFInfo
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- CN1500305A CN1500305A CNA028073649A CN02807364A CN1500305A CN 1500305 A CN1500305 A CN 1500305A CN A028073649 A CNA028073649 A CN A028073649A CN 02807364 A CN02807364 A CN 02807364A CN 1500305 A CN1500305 A CN 1500305A
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- capacitor
- motor sleeve
- motor
- capacitor cover
- cover
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches
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- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
A case retained external capacitor (22) that can be installed onto the motor sleeve (24) of an electric motor (26). The case retained capacitor includes a capacitor case (28) having a mounting clip (68) formed along its inner wall. The mounting clip is sized to be retained within an attachment slot (62) stamped from the motor sleeve. The capacitor case receives a capacitor having lead wires (30) that extend out of the capacitor case and into the interior defined by the motor sleeve. During construction of a motor utilizing the case retained capacitor of the present invention, the capacitor case is installed along the motor sleeve by sliding the mounting clip into the attachment slot formed in the motor sleeve. Once the capacitor case is in place, the end plate (74) of the motor is installed to prevent separation of the capacitor case from the motor sleeve.
Description
The reference of related application
The application applied for based on March 27 calendar year 2001, sequence number is 60/279149 U.S. Provisional Patent Application, and requires the priority to above-mentioned patent application.
Technical field
The structure of relate generally to motor of the present invention relates in particular to a kind of motor that has capacitor, and this capacitor is used to produce electric phase shift, thereby produces rotating magnetic field in load motor.
Background technology
As everyone knows, motor comprises stator and the armature (or rotor) that has coil.Motor has following characteristics in design: the electric current by stator and armature coil can produce opposite magnetic field.When these magnetic fields attempted to harmonize, motor shaft rotated.
For alternating current machine, thus with capacitor in the input circuit of motor, produce electric phase shift produce rotating magnetic field industrial be common way.Currently be used for the common capacitor of motor or be included in the motor sleeve self, or be the outside that is connected motor sleeve by annex.
Below referring to Fig. 1, this is the configuration of outside that in the prior art capacitor 10 is installed in the motor sleeve 12 of alternating current machine.As shown in Figure 1, motor sleeve 12 comprises a pair of erection column bolt 14 that extends from the cylindrical circular basically outer wall of motor sleeve.In the assembling process of motor and motor sleeve 12, the installation of erection column bolt 14 must be carried out as an independent step.Keep certain spacing between the erection column bolt 14, so that allow capacitor 10 between erection column bolt 14, so metal mounting strap 16 can be assemblied in the top of capacitor 10, and is fastened on the erection column bolt 14 by a pair of nut 18.Of particular note, metal mounting strap 16 comprises a pair of installing hole 20 that holds column bolt 14, and fastening to nut 18 by that.
External capacitor 10 comprises a pair of subsidiary binding post (do not show, be hidden in rubber cover 21 belows).Those two capacitor leads that have a subsidiary supporting binding post (not shown) stretch out from the wire outlet that the motor (stator module) of motor sleeve 12 inside passes motor sleeve, in the inside of motor sleeve 12, these two capacitor leads are connected on the wiring of input power source post of alternating current machine.Rubber cover 21 covers on the top of described lead, and described lead stretches out from the wire outlet that motor (stator module) passes motor sleeve.In case being mounted, external capacitor 10 is with 16 to fix, and the binding post of described capacitor lead is connected on the described condenser terminal post, described rubber cover 21 just is installed on the entire equipment, so that described capacitor, capacitor lead and binding post electric insulation separately thereof.In addition, in the assembling process of motor, rubber cover 21 is installed needs other step.
Although the effective way of the attachment device shown in Figure 1 described external capacitor 10 that is attaching, but it but needs extra parts and work that described capacitor 10 is fastened on the described motor sleeve 12, and described rubber cover 21 is installed in the top of entire equipment.These extra parts and work can increase the complexity of total cost and described motor.
Therefore, the improved method and structure that needs a kind of outside of the motor sleeve that external capacitor is attached to motor.In addition, need an external capacitor and corresponding lead, after described capacitor was attached to the outside of described motor sleeve, described lead was covered fully and is protected, and separated with outer member.
Summary of the invention
The present invention is a kind of external capacitor that can keep along the usefulness cover that the shell of motor is installed.The capacitor that keeps with cover of the present invention allows to need not extra instrument, parts or manufacturing step in the construction process of motor and described capacitor is installed.
The external capacitor that keeps with cover comprises a capacitor cover, and this capacitor cover defines the open inside that a size can be held a capacitor, and this capacitor has subsidiary lead.The described lead of capacitor is designed to be connected on the motor that is positioned at the motor outer sleeve, and the motor outer sleeve is around described motor.Capacitor cover has an inwall adjacent with the outer surface of motor sleeve.The inwall of capacitor cover comprises that is installed a folder, and described sectional fixture has such shape: it can be accepted by the mounting groove on the metal sleeve of motor, and described mounting groove is stamped to form in installing sleeve.And mounting groove has such shape, and promptly it extends axially from first end of described motor sleeve.
The described inner surface of described installation folder and capacitor cover forms one, and comprises a pair of resettlement groove that separates.The width of the resettlement groove of described installation folder is enough to settle the thickness of the outer wall of motor sleeve, therefore described capacitor cover is slided in the described mounting groove.The installation folder of described capacitor cover comprises a central channel, and the lead that is included in the capacitor in the capacitor cover passes described central channel and enters motor, and is connected on the power-line terminal of motor.
In case the capacitor lead is connected on the motor, just an end plate is contained on first end of motor sleeve.The excircle of described end plate has sealed described mounting groove, and prevents that described installation folder from deviating from motor sleeve.
In one embodiment of the invention, that oppose side wall that limits described capacitor cover extends through the described inwall of capacitor cover, and defines pair of posts.Therefore every described pillar all comprises the projection that a mold pressing forms, and described projection contacts with the outer surface of motor sleeve, described projection and pillar air gap of generation between the outer surface of the inwall of capacitor cover and motor sleeve.
In another embodiment of the present invention, described capacitor cover comprises an extension support, and described extension support extends from the inwall of capacitor cover, and provides additional space between the outer surface of the inwall of capacitor cover and motor sleeve.Described extension support only is shaped along the part of the inwall of capacitor cover.
In yet another embodiment of the present invention, the described installation folder that forms along capacitor cover comprises a pair of resettlement groove, and each resettlement groove comprises the wedge-shaped surface of an inclination again.Each wedge-shaped surface ends on the upper surface of the below slightly that the described top that presss from both sides is installed.In this embodiment of the present invention, the mounting groove that is formed on the motor sleeve is formed by pair of angled side walls, and each sidewall comprises that all keeps a tab.The upper surface of described maintenance tab and wedge shape meshes, thereby described installation is clamped the correct position that remains on tightly in the mounting groove.
In the construction process of the external capacitor that keeps with cover of the present invention, the epoxy resin of initial supply is injected in the open inside of capacitor cover.Then capacitor material is positioned in described capacitor cover and the initial epoxy resin, and the capacitor lead is positioned in the central channel that is formed in the described installation folder.In case described capacitor and lead are in suitable position, Gong Ying epoxy resin just is injected in the open inside of capacitor cover again once more, and therefore, the epoxy resin of being supplied makes described capacitor have water resistance.
In case after the external capacitor formation with the cover maintenance, described installation folder is slided in the mounting groove that is formed in the motor sleeve, and the capacitor lead is connected on the described motor.After capacitor cover arrives suitable position along motor sleeve, just load onto the motor end plate to prevent the disengaging of capacitor cover and motor sleeve.
Introduce other various characteristics, purpose and advantage of the present invention below in conjunction with accompanying drawing.
Description of drawings
Accompanying drawing illustrates the enforcement mode of the present invention of present the best.In the accompanying drawings:
Fig. 1 is the decomposition diagram of the mounting structure of external capacitor on motor sleeve in the prior art;
Fig. 2 is the decomposition diagram with the capacitor, motor sleeve and the end plate that cover maintenance among the present invention;
Fig. 3 is the capacitor cover of the capacitor of using the cover maintenance in the first embodiment of the present invention and the front perspective view of capacitor lead;
Fig. 4 is the capacitor cover of the capacitor of using the cover maintenance in the second embodiment of the present invention and the front perspective view of capacitor lead;
Fig. 5 is the capacitor cover of the capacitor of using the cover maintenance in the third embodiment of the present invention and the front perspective view of capacitor lead;
Fig. 6 is the end view with first embodiment of the capacitor of cover maintenance;
Fig. 7 is the cutaway view along Fig. 6 center line 7-7;
Fig. 8 is the cutaway view along Fig. 6 center line 8-8;
Fig. 9 is the fragmentary, perspective view that is used in the installation folder on the capacitor that keeps with cover and is formed on another embodiment of the mounting groove on the motor sleeve.
Embodiment
At first referring to Fig. 2, it shows a kind of capacitor 22 that keeps with cover of the present invention.The described capacitor 22 that keeps with cover is designed to be installed on the motor sleeve 24 of alternating current machine 26.The described capacitor 22 that keeps with cover generally comprises an external capacitor cover 28, described capacitor cover 28 is designed to hold a capacitor that has couple of conductor 30, described lead 30 can be connected on the power supply, and described power supply is used to make described motor 26 runnings.
Referring now to Fig. 3,, the capacitor cover 28 in the first embodiment of the present invention define one be generally hollow, open inner 32, described inner 32 have following shape: can hold the capacitor of being wanted that has lead 30.Described capacitor cover by the outer wall 34 of bending, pair of sidewalls 36 and 38 and inwall 40 limit jointly.Described capacitor cover 28 extends between first end 42 and second end 44.As shown in Figure 6, described second end 44 is limited by diapire 46.Described diapire 46 provides support for the capacitor that inserts in the capacitor cover 28.In most preferred embodiment of the present invention, whole capacitor device cover 28 is to form with the plastic monoblock molding.
Later see Fig. 3 again, described capacitor cover 28 comprises an installation folder 48 that is formed on described first end 42.Described installation folder 48 extends from the inwall 40 of capacitor cover 28.As shown in Figure 2, folder 48 is installed and is comprised a pair of isolated resettlement groove 50 and 52.Described resettlement groove 50,52 is limited between a pair of outer lip part 54,56 and a pair of epipharynx part 58,60.Be appreciated that according to Fig. 2 folder 48 is installed allows described capacitor cover 28 to be installed on the motor sleeve 24.
Of particular note, motor sleeve 24 comprises first end, the 64 inside axially extended mounting grooves 62 from motor sleeve 24.In most preferred embodiment of the present invention, motor sleeve 24 is formed by metal, and mounting groove 62 is stamped to form on described sleeve 24.Mounting groove 62 is limited by diapire 66 and a pair of sidewall that separates 68,70.In the assembling process of---this motor has been used the capacitor 22 that keeps with cover---, at first adjust the position of capacitor 22 at motor, thereby described installation folder 48 is alignd substantially with the mounting groove 62 of motor sleeve 24.In case after the alignment, just make capacitor cover 28, thereby the sidewall 68,70 of motor sleeve 24 be positioned in the resettlement groove of installing in the folder 48 50,52 to lower slider.In most preferred embodiment of the present invention, that width to the folder of the installation between the resettlement groove 50,52 48 is closely corresponding with that width to the mounting groove 62 between the sidewall 68,70 that separates.Like this, slide into mounting groove 62 in case folder 48 is installed, that external lip portion 54,56 will stop capacitor cover 28 radially to be pulled outwardly out, and prevents that it and mounting groove 62 break away from.Being slidingly matched of the best between resettlement groove 50,52 and the isolated sidewall 68,70 can prevent that to a certain extent capacitor cover 28 from axially skidding off from mounting groove 62.This is slidingly matched and allows capacitor cover 28 to keep in place, to assemble other electric machine assembly before end plate 74 is installed.
Later see Fig. 3 again, folder 48 is installed is had such structure: it comprises a central channel 70 that axially extends internally from first end 72 that folder 48 is installed.The width of described central channel 70 allows that lead 30 is extended capacitor cover 28.As shown in the figure, the width of central channel 70 should make described lead 30 abut one another installation, thereby prevents that epoxy resin from flowing out capacitor cover 28.Shown in Fig. 7 and 8, every described lead 30 all is connected on the capacitor material 108 that is immersed in the epoxy resin 100.Only be for the ease of showing that Fig. 3-5 does not provide described epoxide resin material.Yet---comprising cover 28---comprises an epoxy resin and the internal capacitor supplied to should be appreciated that the capacitor that keeps with cover.
When capacitor cover 28 was installed on the motor sleeve 24, that just extended to the inside of cylindrical shape motor sleeve 24 to lead 30, and can be connected on the motor 26, as shown in Figure 2.
In case after capacitor cover 28 was installed on the motor sleeve 24, end plate 74 just was installed on first end 64 of motor sleeve 24 with traditional method.When end plate 74 was installed on the motor sleeve 24, the excircle 76 of end plate 74 had just covered the opening of mounting groove 62, and prevented that installation folder 48 from skidding off mounting groove 62 vertically.By this way, end plate 74 just will be installed folder 48 and whole capacitor 22 with cover maintenance is fixed on the motor sleeve 24.Like this, in case end plate 74 installs, capacitor cover 28 just can not take off from motor sleeve 24, no matter is vertically or radially.
As previously mentioned, compare, use capacitor cover 28 of the present invention to reduce number and the operating procedure that external capacitor is installed in element required on the motor with motor of the prior art shown in Figure 1.As previously mentioned, motor of the prior art needs following steps: insert erection column bolt 14, fastening erection column bolt 14 is along motor sleeve location external capacitor, connection band 16, clamp nut 18 is connected to binding post on the capacitor lead, the capacitor lead is connected on the power lead of motor, the binding post of capacitor lead is connected on the binding post of capacitor, rubber cover is installed, is made it cover whole outer lead and binding post structure, thereby required electric insulation is provided.
Be appreciated that according to Fig. 2, the process that the external capacitor 22 (comprising capacitor cover 28) that keeps with cover is installed only needs following steps: subsidiary capacitor lead 30 is connected on the power lead of motor internal, make and folder 48 is installed is alignd with mounting groove 62, make installation folder 48 slide in the mounting groove 62 fastening end plate 74.Obviously, with respect to prior art shown in Figure 1, this method and apparatus has reduced the complexity of the number and the assembling process of element.
Later see Fig. 3 again, in the first embodiment of the present invention, each sidewall 36,38 all extends through inwall 40, thereby defines a pair of isolated pillar 78,80.The part of pillar 78,80 contacts with the curved exterior surface of metal motor sleeve 24. Pillar 78,80 produces an air gap between the excircle of part inwall 40 and motor sleeve 24.This air gap has reduced the motor 26 in the motor sleeve 24 and has been included in the heat that the capacitors in the capacitor cover 28 transmit.As shown in Figure 7, capacitor cover 28 comprises a pair of groove 82 and 84, and this provides extra air gap to groove between the outer surface of the described wall of capacitor cover 28 and motor sleeve.
Get back to Fig. 3, shown in embodiments of the invention in, that all comprises the projection 86 of a compression molding to each root in the pillar 78,80, described projection 86 makes that separate pillar 78,80 and motor sleeve 24, thereby increased air gap, and increased the gas flow between capacitor cover 28 and the motor sleeve 24.In most preferred embodiment of the present invention, the oblique structure of minimum slit between pillar 78,80 and the motor sleeve 24 and sidewall 36,38 makes the surface caught of capacitor cover minimize.The minimum surface of catching has been reduced capacitor cover and has been used as the possibility that handle is carried motor, and in assembly operation, the unsuitable stress on the tenon type composition surface between capacitor cover 28 and the motor sleeve 24 is just reduced like this.
Have a look Fig. 4 now, this is second embodiment of capacitor cover 87.In the embodiment shown in fig. 4, each sidewall 88,90 all ends at inwall 92.Conversely, inwall 92 is arch, and its curvature generally the curvature with the excircle of motor sleeve is suitable.Like this, when capacitor cover 87 was installed on the motor sleeve, inwall 92 generally contacted with the excircle of motor sleeve.
See Fig. 5 now, this is the 3rd embodiment of capacitor cover 93.As shown in Figure 5, capacitor cover 93 comprises an extension support 94 on first end 96 that is formed on capacitor cover.Described extension support 94 comprises first support section 98 and second support section 100, and the two lays respectively on the opposite side that folder 101 is installed.These two support sections 98 and 100 comprise an arch contact-making surface 102.The radius of described arch contact-making surface 102 is roughly corresponding to the radius of the excircle of motor sleeve.As shown in Figure 5, the position of contact-making surface 102 away from inwall 106 outer surface 104, therefore when capacitor cover 93 was installed, described outer surface 104 can maintain a certain distance with motor sleeve, thereby an air gap is provided between capacitor cover 93 and motor sleeve.
Although Fig. 3-5 has provided the embodiment of a plurality of capacitor covers, each capacitor cover all comprises a capacitor (not shown), and described capacitor is comprised in the open inside that outer wall limited by capacitor cover.In the process that the capacitor that keeps with cover is installed, the epoxy resin of initial supply is injected in the open inside that is limited by capacitor cover 28.Next, as shown in Figure 8, capacitor is inserted in the open inside and the initial epoxy resin of supplying 110 that is limited by capacitor cover 28, and the material that wherein constitutes capacitor coil is the metallized polypropylene film that cross section is extended ovalisation, and the two ends of capacitor have lead 30.
After in case capacitor 108 and lead 30 inserts, in two leads 30 wherein one can upwards transmit along one in the described inwall of capacitor cover, this root lead can be connected to the bottom of capacitor 108 at described inwall place.As shown in Figure 7, another root lead 30 extends from the place of centre that it is connected to the top of capacitor 108, and two leads 30 all pass and are formed on the central channels of installing in the folder 48 and extend.
In embodiments of the invention shown in Figure 8, in design, the outer surface of the internal structure of capacitor cover 28 and capacitor 108 and the extra intimate of a lead 30 are corresponding.In case capacitor 108 installs, and lead 30 is inserted into and is formed on the central channels of installing in the folder 48 70, the epoxy resin of supplying once more 110 will be injected in the capacitor covers 28, and capacitor cover 28 is fully around capacitor 108 and lead 30.Epoxy resin 110 forms electric insulation, damping and a waterproof sealing around capacitor 108, and the entire upper surface of covering capacitor 108.Like this, when the capacitor 22 that keeps with cover was installed as shown in Figure 2, the top of capacitor cover 28 was by epoxy sealing, the epoxy resin insulating effect that electrifies, and can prevent the sealing contacting capacitor.Get back to Fig. 8, the enclosed construction between the inner surface of capacitor 108 and capacitor cover 28 has reduced the demand of epoxy resin.
In present embodiment of the present invention, capacitor cover 28 is formed by the suitable hard electrical insulating material such as plastics (for example polypropylene or nylon 6/6) mold pressing.Electric insulation cover and insulated enclosure material 110 (for example epoxy resin or polyurethane resin) be used in combination the shock hazard that has prevented capacitor material.
See Fig. 9 now, this is the another kind of structure of the installation folder 110 that uses together with the capacitor that keeps with cover of the present invention.As shown in Figure 9, described installation folder 110 comprises that external lip portion 112 and 114, and outer lip part 112 and 114 defines that to isolated resettlement groove 116 and 118.As previously mentioned, resettlement groove 116 and 118 the selected outer wall 120 of width to adapt to motor sleeve.
As shown in Figure 9, described outer wall 120 comprises mounting groove 122 and diapire 128, and mounting groove 122 is limited by a pair of isolated sidewall 124,126.In embodiments of the invention as shown in Figure 9, sidewall 124,126 outwards opens when described diapire 128 extends upward.The upper end of each sidewall 124,126 comprises that all keeps a tab 130.
In embodiments of the invention as shown in Figure 9, each resettlement groove 116,118 of installing on the folder 110 all comprises a tapered inner surfaces 132, and this tapered inner surfaces 132 is outward-dipping gradually to its top 136 from the bottom 134 that folder 110 is installed.Described surperficial 132 tapering is opening corresponding to that oppose side wall 124,126 of mounting groove 62 roughly.Each wedge-shaped surface 132 all ends at a lock face 138, and described lock face 138 separates with the upper end 136 that folder 110 is installed.When folder 110 being installed sliding into mounting groove 122, that is to keeping tab 130 and lock face 138 engagements, presss from both sides 110 and is fastened in the mounting groove 122 thereby will install.
In embodiments of the invention as shown in Figure 9, folder 110 can directly will be installed without end plate be fastened on the motor sleeve.This being configured in the following electric machine assembly is particularly useful: capacitor is connected with motor and is installed in the position on the motor sleeve or is a diverse location on the equipment, or is the other physical location that the installation site with end plate separates.In the transportation before end plate is installed, lock face 138 that is limited by wedge-shaped surface 132 and the interaction between the maintenance tab 130 make capacitor cover to be firmly held.
All within the protection range of the claim of back, these claims all are taken as theme of the present invention and particularly point out and explicitly call for protection for other various variations and embodiment.
Claims (28)
1, the method on a kind of motor sleeve that external capacitor is installed in motor, described method comprises the steps:
Provide a size can hold the capacitor cover of described capacitor, described capacitor has couple of conductor, and described capacitor cover comprises an outside installation folder from described capacitor cover extension;
Described installation is pressed from both sides in the mounting groove that slides on the motor sleeve that is formed on described motor;
An end plate is installed on the motor sleeve, so that described installation folder is enclosed in the described mounting groove, thereby prevents that capacitor cover from sloughing from motor sleeve.
2, the method for claim 1 also comprises the steps:
Described capacitor is inserted in the described capacitor cover; And
Toward the interior injection ring epoxy resins of described capacitor cover, so that the capacitor waterproof in the capacitor cover.
3, the method for claim 1 is characterized in that: described capacitor cover is made of plastics.
4, the method for claim 1, it is characterized in that: the described mounting groove that is formed on the described motor sleeve is limited by a pair of isolated sidewall and a diapire, wherein said installation folder slides in the described mounting groove, contacts described diapire up to described installation clamping connection.
5, method as claimed in claim 4 is characterized in that: described installation folder comprises a pair of isolated resettlement groove, and when described installation folder slided in the described resettlement groove, that on the mounting groove accepted by the described resettlement groove of described installation folder isolated sidewall.
6, method as claimed in claim 2 also comprises the steps:
The lead of capacitor is positioned to pass installs in the groove that folder extends, thereby the mounting groove that makes the lead of capacitor pass motor sleeve extends;
The lead of capacitor is connected on the power supply of the motor in the motor sleeve.
7, a kind of shell that is used for sealed electric-motor comprises:
A columnar motor sleeve, described motor sleeve have first end and second end, also comprise a mounting groove that axially extends internally from described first end of motor sleeve;
A capacitor cover, it has first end and second end, and defines an open inside, and described capacitor cover comprises an outside folder of installing, and its size can make it be accommodated in the described mounting groove, thereby capacitor cover is installed on the motor sleeve;
A capacitor that is positioned at the open inside of described capacitor cover, described capacitor have a pair of lead that is connected with motor of being used for; And
An end plate that is installed on motor sleeve first end, wherein said end plate closes be formed on the openend of the mounting groove on the motor sleeve, thereby the installation double-layered quilt of capacitor cover is remained in the described mounting groove.
8, shell as claimed in claim 7 is characterized in that: first end of described installation folder and capacitor cover is adjacent.
9, shell as claimed in claim 7 is characterized in that: described mounting groove is limited by a pair of isolated sidewall, and described installation folder also comprises a pair of resettlement groove that is spaced apart from each other, and is used to accept the described sidewall of described mounting groove.
10, shell as claimed in claim 9, it is characterized in that: each resettlement groove that is formed in the described installation folder is partly limited by an outer lip, the width of the installation folder that is wherein partly limited by outer lip is greater than the width of described mounting groove, thereby prevents that capacitor cover from radially deviating from motor sleeve.
11, shell as claimed in claim 10 is characterized in that: described resettlement groove cooperates with the sidewall friction of mounting groove, axially remains in the mounting groove thereby make to install to press from both sides.
12, shell as claimed in claim 7 also comprises an interior groove of installation folder that is formed on capacitor cover, and the size of described groove allows the capacitor lead to extend to the inside of motor sleeve by described mounting groove.
13, shell as claimed in claim 12 is characterized in that: described channel opening is in first end of capacitor cover.
14, shell as claimed in claim 13 is characterized in that: each described sidewall tilts to described outer wall from described inwall.
15, shell as claimed in claim 7 is characterized in that: described capacitor cover comprises an inwall, an outer wall and pair of sidewalls, and described installation folder is connected on the described inwall.
16, shell as claimed in claim 15 is characterized in that: the inwall of described capacitor cover is an arch, and its curvature is roughly corresponding with the curvature of motor sleeve.
17, shell as claimed in claim 15, it is characterized in that: the sidewall of described capacitor cover extends through described inwall, thereby formation pair of posts, described pillar contacts with motor sleeve, make that the described inwall and the motor sleeve of capacitor cover are spaced apart, thereby reduced the heat transmission from the motor to the capacitor.
18, shell as claimed in claim 17 comprises that also at least one is formed on the projection on the every pillar, and when capacitor cover was installed on the motor sleeve, described projection contacted with motor sleeve.
19, shell as claimed in claim 15, it is characterized in that: described capacitor cover also comprises an extension support that extends from described inwall, described extension support has the crooked inner surface that is used for contacting motor sleeve, thereby the described inner surface and the motor sleeve of capacitor cover are spaced apart.
20, shell as claimed in claim 19 is characterized in that: the described extension support only part of the capacitor cover inwall of close capacitor cover first end in edge is shaped.
21, shell as claimed in claim 9, it is characterized in that: each sidewall that limits in the described pair of sidewalls of described mounting groove all comprises an outstanding maintenance tab that is shaped along first end of motor sleeve, be formed on the described resettlement groove of installing on the folder and comprise a wedge-shaped surface that ends at the inclination of upper surface, each described maintenance tab and the engagement of described upper surface, thus described installation folder is remained in the described mounting groove.
22, the combination of a kind of capacitor and shell thereof, it uses together with the motor with motor sleeve, and described motor sleeve comprises a mounting groove that extends from first end of motor sleeve, and described combination comprises:
A capacitor cover, it has first end and second end, and defines an open inside, and described capacitor cover comprises an outside folder of installing, the size that folder is installed makes that folder is installed can be accommodated in the described mounting groove, thereby described capacitor cover is installed on the described motor sleeve; And
A capacitor, it can be positioned at the described open inside of described capacitor cover, and described capacitor has couple of conductor, is used for being connected on the described motor.
23, combination as claimed in claim 22, also comprise an interior groove of installation folder that is formed on described capacitor cover, the size of described groove makes it can hold described capacitor lead, and allows described capacitor lead to pass in the inside that described mounting groove extends into described motor sleeve.
24, combination as claimed in claim 23 is characterized in that: described channel opening is in first end of capacitor cover.
25, combination as claimed in claim 22 is characterized in that: described capacitor cover comprises inwall, outer wall and pair of sidewalls, and described installation folder is along the inner wall forming of described capacitor cover.
26, combination as claimed in claim 25 is characterized in that: the inwall of described capacitor cover is an arch, and its curvature is roughly corresponding to the curvature of motor sleeve.
27, combination as claimed in claim 25 is characterized in that: the sidewall of described capacitor cover extends through described inwall, thereby forms pair of posts, and described pillar contacts with motor sleeve, thereby the inwall of described capacitor and motor sleeve are spaced apart.
28, combination as claimed in claim 25, it is characterized in that: described capacitor cover also comprises an extension support that extends from the inwall of capacitor cover, described extension support only is shaped along the part of described inwall, but also comprise a curved inner surface that is used for contacting motor sleeve, wherein when capacitor cover was connected on the motor sleeve, the inwall and the motor sleeve of capacitor cover were spaced apart.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27914901P | 2001-03-27 | 2001-03-27 | |
| US60/279,149 | 2001-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1500305A true CN1500305A (en) | 2004-05-26 |
Family
ID=23067833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA028073649A Pending CN1500305A (en) | 2001-03-27 | 2002-03-25 | Case retained external capacitor mounted on motor sleeve |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6717307B2 (en) |
| CN (1) | CN1500305A (en) |
| WO (1) | WO2002078156A1 (en) |
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| CN102170190A (en) * | 2010-02-26 | 2011-08-31 | 山洋电气株式会社 | Connecting structure for electric cables and electric apparatus |
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| DE202010006837U1 (en) * | 2010-05-04 | 2011-09-01 | Itt Manufacturing Enterprises, Inc. | Main drive motor |
| DE102010038446A1 (en) * | 2010-07-27 | 2012-02-02 | Robert Bosch Gmbh | Electric motor with filter element attachment |
| US8587169B2 (en) | 2011-06-10 | 2013-11-19 | Nidec Motor Corporation | Motor endshield with capacitor retention structure |
| US9800113B2 (en) * | 2014-10-30 | 2017-10-24 | Tricore Corporation | Modularized servo case |
| TWI581544B (en) * | 2016-04-01 | 2017-05-01 | Built-in capacitive motor for improved construction | |
| CN113012936B (en) * | 2021-04-04 | 2022-05-13 | 深圳市油柑科技有限公司 | Capacitor with protection function |
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| US5491370A (en) * | 1994-01-28 | 1996-02-13 | General Motors Corporation | Integrated AC machine |
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| JP3600481B2 (en) * | 1999-08-20 | 2004-12-15 | 株式会社東芝 | motor |
-
2002
- 2002-03-25 US US10/105,911 patent/US6717307B2/en not_active Expired - Fee Related
- 2002-03-25 WO PCT/US2002/009151 patent/WO2002078156A1/en not_active Application Discontinuation
- 2002-03-25 CN CNA028073649A patent/CN1500305A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170190A (en) * | 2010-02-26 | 2011-08-31 | 山洋电气株式会社 | Connecting structure for electric cables and electric apparatus |
| CN102170190B (en) * | 2010-02-26 | 2015-01-21 | 山洋电气株式会社 | Connecting structure for electric cables and electric apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| US20020140304A1 (en) | 2002-10-03 |
| WO2002078156A1 (en) | 2002-10-03 |
| US6717307B2 (en) | 2004-04-06 |
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